Hertel K008560AS 5/8-11 Unc Taper Tap 4 Flute Hss

Product Description

The HERTEL K008560AS is a straight flute tap designed to cut 5/8-11 UNC internal threads in a wide range of materials. Manufactured from high speed steel (HSS) with a bright/uncoated finish, this tap features a taper chamfer that gradually introduces cutting edges into the workpiece, reducing startup torque and making it well suited for through-hole threading operations. It carries a 3B class of fit and an H3 thread limit, targeting standard tolerance threading applications. With 4 straight flutes and a right-hand thread direction, the K008560AS is a reliable choice for production and maintenance threading tasks in machine shops, manufacturing facilities, and industrial maintenance environments.

This tap is intended for right-hand, 5/8-11 UNC through-hole applications where chips can exit the hole freely. The taper chamfer style makes it appropriate for starting threads from scratch rather than bottoming out in blind holes. It is commonly used in general machining, fabrication, and repair work where standard UNC thread profiles are required. The 3B class of fit is suitable for most standard fastener assemblies, and the H3 thread limit provides a consistent fit across a typical range of mating hardware.

Key Features

• 5/8-11 UNC thread size with right-hand thread direction
• Taper chamfer for gradual thread engagement and reduced startup torque
• High speed steel construction for durability across a broad range of workpiece materials
• Bright/uncoated finish suitable for use with cutting fluids
• 4 straight flutes for chip clearance in through-hole applications
• H3 thread limit and 3B class of fit for standard tolerance assemblies

Compatibility

Designed as a standard OEM-style replacement or direct-use tap for 5/8-11 UNC through-hole threading applications in general machining and maintenance operations.

Installation Notes

Installation is performed by qualified machinists or maintenance technicians using a tap wrench, tapping head, or CNC machine toolholder appropriate for the shank size. Always secure the workpiece and apply cutting fluid compatible with the workpiece material before beginning the threading operation. Back the tap out periodically to break and clear chips, particularly in deeper holes. Do not force the tap if resistance increases unexpectedly, as this can result in tap breakage.